Table 1 The parameters description of SPA2G2R model.
From: Dynamic analysis and optimal control of competitive information dissemination model
Parameter | Description |
|---|---|
S(t) | The number of susceptible people at time t |
P(t) | The number of positive information disseminators at time t |
A(t) | The number of negative information disseminators at time t |
G1(t), G2(t) | The number of information dissemination people subject to isolation control at time t |
R1(t), R2(t) | The number of people who no longer communicate the two types of information at time t |
B | The number of individuals entered in the whole system per unit time |
\(\alpha _1\) | Positive information disseminating rate |
\(\alpha _2\) | Negative information disseminating rate |
\(\beta\) | The contact rate between positive information disseminators and negative information disseminators |
\(\theta _1\) | The probability of easy adopters being influenced by the guidance mechanism |
\(\theta _2\) | The probability of negative information dissemination population being influenced by guidance mechanisms |
\(\lambda _1\) | The probability of positive information dissemination groups being subjected to information isolation mechanisms |
\(\lambda _2\) | The probability of negative information dissemination groups being subjected to information isolation mechanisms |
\(\gamma _1\), \(\gamma _2\) | The recovery rates of positive information disseminators and negative information disseminators |
\(\varepsilon _1\), \(\varepsilon _2\) | The recovery rates of positive information isolators and negative information isolators |
\(\mu\) | The proportion of individuals moving out per unit time |
